Add ScopeExit

Signed-off-by: Addisu Z. Taddese <[email protected]>

test/integration/deprecated_specs.cc

@@ -78,6 +78,11 @@ TEST(DeprecatedElements, CanEmitWarningWithErrorEnforcmentPolicy)
 
 #ifdef _WIN32
   sdf::Console::Instance()->SetQuiet(false);
+  sdf::testing::ScopeExit revertSetQuiet(
+      []
+      {
+        sdf::Console::Instance()->SetQuiet(true);
+      });
 #endif
 
   sdf::SDFPtr sdf(new sdf::SDF());
@@ -123,7 +128,4 @@ TEST(DeprecatedElements, CanEmitWarningWithErrorEnforcmentPolicy)
     ASSERT_FALSE(errors.empty());
     EXPECT_EQ(sdf::ErrorCode::ELEMENT_DEPRECATED, errors[0].Code());
   }
-#ifdef _WIN32
-  sdf::Console::Instance()->SetQuiet(true);
-#endif
 }

test/test_utils.hh

@@ -25,6 +25,27 @@ namespace sdf
 namespace testing
 {
 
+/// \brief Calls a function when going out of scope.
+/// Taken from:
+/// https://github.com/ros2/rclcpp/blob/master/rclcpp/include/rclcpp/scope_exit.hpp
+template <typename Callable>
+struct ScopeExit
+{
+  /// \brief Constructor
+  /// \param[in] _callable Any callable object that does not throw.
+  explicit ScopeExit(Callable _callable)
+      : callable(_callable)
+  {
+  }
+
+  ~ScopeExit()
+  {
+    this->callable();
+  }
+
+  private: Callable callable;
+};
+
 /// \brief A class used for redirecting the output of sdferr, sdfwarn, etc to a
 /// more convenient stream object like a std::stringstream for testing purposes.
 /// The class reverts to the original stream object when it goes out of scope.